초록 ▼

The present invention illustrates an electric fan includes a motor, a rotatable disc and a fan blade. The motor has a driving shaft extended outwardly, the rotatable disc is connected with an end of the motor, and a fan shaft is pivotally connected on the rotatable disc and obliquely disposed relati

The present invention illustrates an electric fan includes a motor, a rotatable disc and a fan blade. The motor has a driving shaft extended outwardly, the rotatable disc is connected with an end of the motor, and a fan shaft is pivotally connected on the rotatable disc and obliquely disposed relative to the driving shaft. The fan blade is disposed on the fan shaft. A connecting member is disposed between the driving shaft and the fan shaft. The rotatable disc is driven by a driving device to drive the fan shaft to rotate about the driving shaft, so as to expand a blowing range of airflow generated by the fan blade.

대표청구항 ▼

1. An electric fan, comprising: a motor, having a driving shaft extended outwardly, the driving shaft of the motor having a first end and a second end, an end of the motor being fixed with a base member;a rotatable disc, pivotally connected with the end of the motor, and a fan shaft pivotally connec

1. An electric fan, comprising: a motor, having a driving shaft extended outwardly, the driving shaft of the motor having a first end and a second end, an end of the motor being fixed with a base member;a rotatable disc, pivotally connected with the end of the motor, and a fan shaft pivotally connected rotatably supported on the rotatable disc and by a restraining part to be obliquely disposed relative to the driving shaft, the first end of the driving shaft being extended through the base member and the rotatable disc and a connecting member being connected disposed between the driving shaft and the fan shaft to drive the fan shaft, wherein the rotatable disc being pivotally connected on the base member and driven by a driving device to drive rotate the restraining part and angularly displace the fan shaft to rotate therewith about the driving shaft, the rotatable disk being driven by the second end of the driving shaft of the motor and a first transmission mechanism connected therewith, the rotatable disc having a first gear part formed on a peripheral edge thereof and the second end of the driving shaft being formed with a second gear part, the first transmission mechanism including a plurality of gears engaged with each other, and an end thereof engaged with the first gear part of the rotatable disc and another end of the first transmission mechanism being engaged with the second gear part of the driving shaft, the restraining part receiving the connecting member and the fan shaft being constrained by the restraining part to be rotated obliquely relative to the driving shaft by the rotatable disc; anda fan blade, disposed on the fan shaft to be driven by the fan shaft. 2. The electric fan according to claim 1, wherein the restraining part is a shell body formed with an opening, the connecting member is disposed inside the shell body and the opening faces towards an oblique direction relative to the driving shaft, and the fan shaft is pivotally connected with the opening and extended out of the opening. 3. The electric fan according to claim 2, wherein the connecting member is a flexible tube and has two ends respectively fastened with the fan shaft and the first end of the driving shaft. 4. The electric fan according to claim 2, wherein the connecting member is a transmission gear assembly comprising at least two gears engaged with each other, and having an end connected with the fan shaft and other end connected with the first end of the driving shaft. 5. The electric fan according to claim 1, further comprising a support having a shaft seat to pivotally connect with the motor; wherein the second end of the driving shaft is further connected with a second transmission mechanism which is connected with a cam, and a link rod is connected between the shaft seat and the cam. 6. The electric fan according to claim 5, wherein each of the first transmission mechanism and the second transmission mechanism has a pull rod, the pull rods are respectively connected with the second end of the driving shaft by linking members, and when one of the pull rods is pulled, and the linking member corresponding to the pulled pull rod escapes from the driving shaft. 7. An electric fan, comprising: a motor, having a driving shaft extended outwardly, an end of the motor being fixed with a base member;a rotatable disc, pivotally connected with the end of the motor, and a fan shaft rotatably supported on the rotatable disc by a restraining part to be obliquely disposed relative to the driving shaft, a connecting member being connected between the driving shaft and the fan shaft to drive the fan shaft, the rotatable disc being pivotally connected on the base member and driven by a driving gear coupled to a servo motor, the servo motor being fixed on a side of the base member, the rotatable disc having an outer gear part formed on a peripheral edge thereof and engaged with the driving gear to rotate the restraining part and angularly displace the fan shaft therewith about the driving shaft, the restraining part receiving the connecting member and the fan shaft being constrained by the restraining part to be rotated obliquely relative to the driving shaft by the rotatable disc; anda fan blade, disposed on the fan shaft to be driven by the fan shaft.